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Issue: Vol. 452 No. 1: 8 July 2020
Type: Article
Published: 2020-07-08
DOI: 10.11646/phytotaxa.452.1.6
Page range: 65–74
Abstract views: 45
PDF downloaded: 3

Two new species of nematode-trapping fungi (Dactylellina, Orbiliaceae) from burned forest in Yunnan, China

Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. School of Public Health, Dali University, Dali, Yunnan 671003, P.R. China.
Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. School of Public Health, Dali University, Dali, Yunnan 671003, P.R. China.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. Key Laboratory of Yunnan State Education Department on Er’hai Lake Basin Protection and the Sustainable Development Research, Dali University, Dali, Yunnan 671003, P.R. China. The provincial innovation team of biodiversity conservation and utility of the three parallel rivers from Dali University, Dali University, Dali, Yunnan 671003, P.R. China.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. Key Laboratory of Yunnan State Education Department on Er’hai Lake Basin Protection and the Sustainable Development Research, Dali University, Dali, Yunnan 671003, P.R. China. The provincial innovation team of biodiversity conservation and utility of the three parallel rivers from Dali University, Dali University, Dali, Yunnan 671003, P.R. China.
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, P.R. China. Key Laboratory of Yunnan State Education Department on Er’hai Lake Basin Protection and the Sustainable Development Research, Dali University, Dali, Yunnan 671003, P.R. China. The provincial innovation team of biodiversity conservation and utility of the three parallel rivers from Dali University, Dali University, Dali, Yunnan 671003, P.R. China.
Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Burned forest New species Morphology Orbiliaceae Phylogeny Fungi

Abstract

Two new Dactylellina (nematode-trapping fungi) species, D. yushanensis and D. cangshanensis from the burned forest soil in Cangshan Mountain, Yunnan Province, China are introduced in this paper based on morphology and phylogenetic analysis. Their descriptions and illustrations are provided. Dactylellina yushanensis is characterized by its geniculate branched conidiophore, two types conidia and fusiform, clavate or drop-shaped microconidia grown in conidiophore or produced by macroconidia with micro-cycle conidiation pathway. Dactylellina cangshanensis is characterized by its fusiform, spindle-shaped, clavate or drop-shaped conidia with 2-4-septate. Phylogenetic analysis based on combined ITS, EF1-α and RPB2 sequence showed that these two species cluster together with D. ellipsospora with obvious genetic differentiation.